ADOPTED LEVELS, GAMMAS for 69Ni

Author: C.D. Nesaraja |  Citation: Nucl. Data Sheets 207, 1 (2026) |  Cutoff date: 1-Apr-2023 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=5758 keV 4S(n)= 4586 keV 5S(p)= 15625 keV 5Q(α)= -11186 keV 6
Reference: 2021WA16

References:
  A  69Co β- decay  B  69Ni IT decay (0.439 μs)
  C  2H(68Ni,p)  D  9Be(70Ni,69NiG)
  E  9Be(76Ge,X) 

General Comments:

2012Ga06: Summary and compilation of the discovery of the Ni isotopes

2002Kr13: Produced from 238U(p,f) reaction at E= 30 MeV with resonant laser-ionization and mass separation at Louvain-la Neuve cyclotron facility. Production rate was 23 atoms/μC 4.

1984De33: Production of neutron rich nuclei from 70Zn(14C,15O) reaction at E(14C)=72 MeV. Measured spectra, differential cross sections and 69Ni mass excess.

Q-value: S(2n)=12379 5, S(2p)=28848 5 (2021Wa16)









E(level)
(keV)		XREFJπ(level) T1/2(level)E(γ)
(keV)		I(γ)Final Levels
     0.0ABCDE (9/2+) 11.4 s 3 
% β- = 100
    
   321 2 AB DE (1/2-) 3.5 s 4 
% β- ≈ 100
    
   915.1 3 AB D  (5/2-) 120 ps 34     594.2 4 
  100
   321
(1/2-)
  1450 2 ?   D  (1/2-,3/2-)     1129 2 
  100
   321
(1/2-)
  1517.4 3 A  D  (5/2-)      602.4 4 
  1196.3 4 
   49 13 
  100 19 
   915.1
   321
(5/2-)
(1/2-)
  1640 5 ?   D  (1/2-,3/2-)     1319 5 
  100
   321
(1/2-)
  1821.0 6 A          303.6
  100
  1517.4
(5/2-)
  1830A           
  1866 4 ?   D  (1/2-,3/2-)     1545 4 
  100
   321
(1/2-)
  1959.1 7  B    (9/2-)     1044
  1959
 
 
   915.1
     0.0
(5/2-)
(9/2+)
  2143 2 ?   D  (3/2-)     1822 2 
  100
   321
(1/2-)
  2170 4 ?   D       304 1 
  100
  1866
(1/2-,3/2-)
  2241.1 9  B    (13/2+)     2241
 
     0.0
(9/2+)
  2552.1 9  BC   (13/2-) 519 ps 24     311
   593
   39
  100
  2241.1
  1959.1
(13/2+)
(9/2-)
  2700.1 14  BCD  (17/2-) 0.439 µs 3 
% IT = 100
   148
 
  2552.1
(13/2-)
  3079.1 24 ?   D       379 2 
  100
  2700.1
(17/2-)
  3543.1 17 ?   D       843
 
  2700.1
(17/2-)

E(level): Except as noted, levels are from Eγ data.

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
     0.0(9/2+) 11.4 s 3 
% β- = 100
Configuration=ν(g9/2-1).
Jπ(level): Tentative assignments from assigned configuration and level systematics in 1998Gr14 which are in good agreement with large scale shell model calculation using NR78 interaction (1998Gr14,2010RaZY).
   321(1/2-) 3.5 s 4 
% β- ≈ 100
Configuration=ν(p1/2-1).
Jπ(level): Tentative assignments from assigned configuration and level systematics in 1998Gr14 which are in good agreement with large scale shell model calculation using NR78 interaction (1998Gr14,2010RaZY).
   915.1(5/2-) 120 ps 34  Configuration=ν(f5/2-1).
  1450(1/2-,3/2-)   Jπ(level): Based on comparisons with shell-model calculations (2016Re20).
  1517.4(5/2-)   Jπ(level): Based on comparisons with shell-model calculations (2016Re20).
  1640(1/2-,3/2-)   Jπ(level): Based on comparisons with shell-model calculations (2016Re20).
  1866(1/2-,3/2-)   Jπ(level): Based on comparisons with shell-model calculations (2016Re20).
  1959.1(9/2-)   Jπ(level): Tentative assignments from assigned configuration and level systematics in 1998Gr14 which are in good agreement with large scale shell model calculation using NR78 interaction (1998Gr14,2010RaZY).
  2143(3/2-)   Jπ(level): Based on comparisons with shell-model calculations (2016Re20).
  2241.1(13/2+)   Jπ(level): Tentative assignments from assigned configuration and level systematics in 1998Gr14 which are in good agreement with large scale shell model calculation using NR78 interaction (1998Gr14,2010RaZY).
  2552.1(13/2-) 519 ps 24  Jπ(level): Tentative assignments from assigned configuration and level systematics in 1998Gr14 which are in good agreement with large scale shell model calculation using NR78 interaction (1998Gr14,2010RaZY).
  2700.1(17/2-) 0.439 µs 3 
% IT = 100
Configuration=ν(g9/22)8+~#π(p3/2) (1998Gr14).
Jπ(level): Tentative assignments from assigned configuration and level systematics in 1998Gr14 which are in good agreement with large scale shell model calculation using NR78 interaction (1998Gr14,2010RaZY).

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Additional Gamma Comments:

E(level)E(gamma)Comments
   915.1   594.2E(γ): from 69Co β- decay. Others: 594 1 from 69Ni IT decay and 594 1 from (70Ni,69Niγ)
  1450  1129E(γ): From 9Be(70Ni,69Niγ)
  1517.4   602.4I(γ): from 69Co β- decay. Other: 49 17 from (70Ni,69Niγ)
  1196.3E(γ): from 69Co β- decay. Other: 1196 2 from (70Ni,69Niγ)
I(γ): from (70Ni,69Niγ). Other: 100 22 from 69Co β- decay
  1640  1319E(γ): From 9Be(70Ni,69Niγ)
  1821.0   303.6E(γ): From 69Co β- decay
  1866  1545E(γ): From 9Be(70Ni,69Niγ)
  1959.1  1044E(γ): From 69Ni IT decay
  1959E(γ): From 69Ni IT decay
  2143  1822E(γ): From 69Ni IT decay
  2170   304E(γ): From 9Be(70Ni,69Niγ)
  2241.1  2241E(γ): From 69Ni IT decay
  2552.1   311E(γ): From 69Ni IT decay
   593E(γ): From 69Ni IT decay
  2700.1   148E(γ): From 69Ni IT decay
  3079.1   379E(γ): From 9Be(70Ni,69Niγ)
  3543.1   843E(γ): From 9Be(70Ni,69Niγ)

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